# define XMEMDUP_H_
# include <stddef.h>
-# include <stdnoreturn.h>
# ifdef __cplusplus
or by using gnulib's xalloc-die module. This is the
function to call when one wants the program to die because of a
memory allocation failure. */
-extern noreturn void xalloc_die (void);
+extern _Noreturn void xalloc_die (void);
char *xmemdup0 (void const *p, size_t s);